View Compilation Error

0_0_39373887_28869.cpp: In function 'int main()':
0_0_39373887_28869.cpp:48:9: error: 'memset' was not declared in this scope
   48 |         memset(b,0,sizeof(b));
      |         ^~~~~~
0_0_39373887_28869.cpp:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    2 | #include<cmath>
  +++ |+#include <cstring>
    3 | using namespace std;